xt7hx34mn42v https://exploreuk.uky.edu/dips/xt7hx34mn42v/data/mets.xml   Kentucky Agricultural Experiment Station. 1938 journals kaes_circulars_294_02 English Lexington : The Service, 1913-1958. Contact the Special Collections Research Center for information regarding rights and use of this collection. Kentucky Agricultural Experiment Station Circular (Kentucky Agricultural Experiment Station) n. 294 text Circular (Kentucky Agricultural Experiment Station) n. 294 1938 2014 true xt7hx34mn42v section xt7hx34mn42v 4 Circular N0- 294 (Revised) Lexington, February, 1938
)O1`—
UNIVERSITY OF KENTUCKY
COLLEGE OF AGRICULTURE
ml Extension Division
Oi] THOMAS P. COOPER, Dean and Director
lm] Published in connection with the agricultural extension work carried on by cooper-
ation of the College of Agriculture, University of Kentucky, with the U. S. Department
rpt; . ;g0I;;gr;;Sul(t;irle/iasangd isigitlributed in furtherance of the work provided for in the act oi n
APPLE SPRAY SCHEDULE
· This schedule is for the average commercial orchard. The
’ ’ important sprays are starred (*). To assist the home orch-
i ardist who is not able to put on a full spray program, the most
. important sprays are starred twice. These are often adequate
_ for a small, isolated orchard, but it should not be expected that
t Ot  . the use of these only will give the best control of pests.
fm Dormant spray. If San Jose scale infestation is moderate
mm to heavyi tangoil spraty should be used and the concentration
increase o percen .
my . Scab sprays. If wet weather prevails during the green tip
` stage the complete schedule of scab sprays should be followed.
fw. lf dry weather prevails during the first part of the scab sea-
ml son, a spray need not be applied until after a moderately heavy
in H rain has given the spores a chance to mature.
had . Codling moth. In most commercial orchards of Kentucky,
my _ . the sprays indicated by a star, or stars, should give satisfac-
I tory control. Orchards which have a heavy infestation may
mps Deed more sprays than this schedule indicates and special in-
the struction should be obtained from the College of Agriculture.
4 Sanitary measures in addition to spraying should be taken in
all large orchards to prevent the building up of a large popula-
tion of codling moths. These include scraping the rough bark
from the trunks and limbs during the winter and burning it; ·
use of chemically treated bands applied before June l; hand
Dicking and destroying wormy apples in June, and again in
late July and early August; screening packing sheds.

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4 Kmi/ucky lfxlcnximi Cirrmlar No. 291  
. Bitter rot. To keep bitter rot in check a bordeaux spray
should be made in all orchards about the iirst of July. Grow-
ers who have had losses from bitter rot should apply a bor- .
deaux spray about the middle of June, and at two—week inter-
A vals, until four sprays have been applied. They should be
alert to observe the first appearance of the disease. Hand-pick i
and destroy all rotted fruit and search for over-wintering
_ i sources, such as old fruit stems, mummied fruits and dead
wood. The source usually may be found directly above the
V first rotting fruits, and should be removed.
‘ TANK-MIXED OIL EMULSION
USE LUBRICATING OIL, viscosity 125 to 200 seconds,
Saybolt, at 100" F.; volatility less than 2 percent. This oil is
sold at bulk stations under such names as "agricultural spray
oil," "orchard spray oil," "scale oil," at about 20 cents a
gallon.
For Hand Pumps For Power Pump
Oil ...........,..... 1 gal. Oil ................. 2 gal.
Calcium caseinate .. 5 ozs. Calcium caseinate .. 6 ozs.
Water to make ...... 50 gals. Water to make ...... 100 gals.
1. Mix the calcium caseinate in a bucket with 1,/Q pint of
water, making a thick paste. Gradually dilute until the bucket
is full. This step is important. '
2. Put the calcium caseinate mixture into the spray tank ‘
and add just enough water to operate the pump.
3. Start pumping and allow discharge from the open spray
rod to flow back into the tank under full pressure.
4. Add the oil, continuing agitation, and pump for a few
minutes; then fill the tank with water. Apply spray immedi- h
ately.
Power spray pumps are more satisfactory than hand pumps ,.ub,iShE
for making tank—mixed emulsions. The procedure is the same. i;§l,‘f,§,Q;2*
but less calcium caseinate is needed. wm Mi!